Global Patent Index - EP 3315784 B1

EP 3315784 B1 20221012 - SUBMERSIBLE PUMP UNIT AND METHOD OF OPERATING A SUBMERSIBLE PUMP UNIT

Title (en)

SUBMERSIBLE PUMP UNIT AND METHOD OF OPERATING A SUBMERSIBLE PUMP UNIT

Title (de)

TAUCHPUMPENAGGREGAT UND VERFAHREN ZUM BETREIBEN EINES TAUCHPUMPENAGGREGATES

Title (fr)

GROUPE DE POMPAGE SUBMERSIBLE ET PROCÉDÉ DE FONCTIONNEMENT D'UN GROUPE DE POMPAGE SUBMERSIBLE

Publication

EP 3315784 B1 20221012 (DE)

Application

EP 16195617 A 20161025

Priority

EP 16195617 A 20161025

Abstract (en)

[origin: US2018112658A1] A submersible pump assembly (1), for arrangement in a shaft (2) or receptacle, includes a pump (3) and an electric motor (8) driving the pump (3) and a cable (5) for the supply of electricity. The cable is configured for being led out of the shaft (2) or receptacle at the upper side and for connection to an electricity source (7) outside the shaft or receptacle. The pump assembly (1) includes an electronics unit (9) which is configured to transmit a signal into the cable (5) and to detect a reflection signal at the surface (4) of the fluid (10) located in the shaft (2) or receptacle. The electronics unit (9) is configured to determine, from this reflection signal, a fluid level (11) in the shaft (2) or receptacle by way of time domain reflectometry.

IPC 8 full level

F04D 13/08 (2006.01); F04D 15/00 (2006.01); F04D 15/02 (2006.01); G01F 23/28 (2006.01)

CPC (source: CN EP US)

E21B 43/128 (2013.01 - CN EP US); E21B 47/047 (2020.05 - US); F04B 49/06 (2013.01 - US); F04B 51/00 (2013.01 - US); F04D 13/08 (2013.01 - US); F04D 13/086 (2013.01 - CN); F04D 13/10 (2013.01 - EP); F04D 15/00 (2013.01 - CN); F04D 15/0088 (2013.01 - EP US); F04D 15/0218 (2013.01 - EP US); F04D 29/007 (2013.01 - CN); G01F 23/24 (2013.01 - US); G01F 23/28 (2013.01 - EP US); F04B 17/03 (2013.01 - US)

Citation (examination)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3315784 A1 20180502; EP 3315784 B1 20221012; CN 107975481 A 20180501; CN 107975481 B 20210316; US 2018112658 A1 20180426

DOCDB simple family (application)

EP 16195617 A 20161025; CN 201710692410 A 20170814; US 201715661452 A 20170727